CN210035660U - Multistage-series-connection heating absorption type heat exchanger unit - Google Patents
Multistage-series-connection heating absorption type heat exchanger unit Download PDFInfo
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- CN210035660U CN210035660U CN201920132244.3U CN201920132244U CN210035660U CN 210035660 U CN210035660 U CN 210035660U CN 201920132244 U CN201920132244 U CN 201920132244U CN 210035660 U CN210035660 U CN 210035660U
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Abstract
A multistage series connection heating absorption heat exchanger unit, comprising: the system comprises an evaporator, an absorber, a generator, a condenser, a liquid distribution device, a solution heat exchanger and a heat exchanger; the absorber, the generator and the evaporator are respectively provided with at least one liquid distribution device; the liquid distributing device in the generator is connected in series and is connected with the solution heat exchanger. The solution is connected in series between the generator and the absorber of each stage, and is provided with a solution pump and a solution heat exchanger for generation and absorption of the solution stage by stage. The structure mode and the system flow are that the primary heating medium can transfer heat to the hot water on the other side through the flow, and the hot water is heated to a higher temperature which is higher than the highest temperature of the primary heating medium. Difference and traditional absorption heat exchanger unit, the utility model discloses can realize the conversion of the little difference in temperature of heat medium side to the big difference in temperature of hot water side once. And a multistage series connection mode is adopted, so that the heat exchange efficiency is improved.
Description
Technical Field
The utility model relates to a indirect heating equipment, in particular to multistage series connection's type of heating absorption heat exchanger unit.
Background
The heating system is widely applied to occasions such as houses, institutions, factories and mines, hospitals, hotels, schools and the like. In practical application, a medium with a lower temperature is often required to be heated to a higher temperature, but a heat source is insufficient, only a medium-temperature available heat source exists, and the maximum temperature of the medium-temperature heat source is lower than the temperature required to be reached by the heated medium. Aiming at the defects, the invention provides a multistage series connection heating type absorption heat exchanger unit.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
The utility model aims at providing a multistage series connection's type of heating absorption heat exchanger unit is in order to solve above-mentioned problem.
(II) technical scheme
In order to solve the above problem, a first aspect of the present invention provides a multistage series connection temperature-raising absorption heat exchanger unit, which is characterized by comprising: the system comprises a solution heat exchanger, an evaporator, an absorber, a generator, a condenser, a liquid distribution device and a heat exchanger; the absorber, the generator and the evaporator are respectively provided with at least one liquid distribution device; the evaporator is communicated with the absorber, and the generator is communicated with the condenser; an outlet of the condenser shell is connected with an inlet of the evaporator shell, and an outlet of the evaporator shell is connected with the liquid distribution device in the evaporator; the heat medium input port is connected with the heat exchange tube inlet of the evaporator, the heat exchange tube outlet of the evaporator is connected with the heat exchange tube inlet of the generator, and the heat exchange tube outlet of the generator is connected with the heat medium discharge port; and the outlet of the heat exchange tube of the condenser is connected with the inlet of the low-temperature side of the heat exchanger, and the outlet of the low-temperature side of the heat exchanger is connected with the inlet of the heat exchange tube of the absorber. An outlet of the absorber shell is connected with a high-temperature side inlet of the solution heat exchanger, a high-temperature side outlet of the solution heat exchanger is connected with the liquid distribution device in the generator, and the liquid distribution devices in the generator are connected in series; an outlet of the generator shell is connected with a low-temperature side inlet of the solution heat exchanger, and a low-temperature side outlet of the solution heat exchanger is connected with the liquid distribution device in the absorber. The heat medium input port is connected with the heat exchanger high-temperature side inlet, and the heat exchanger high-temperature side outlet is connected with the heat medium outlet.
Furthermore, the number of the evaporators is multiple, and the heat exchange tubes of the evaporators are connected in series; the absorber is provided with a plurality of absorbers, and the heat exchange tubes of the absorbers are sequentially connected in series; the number of the generators is multiple, and the heat exchange tubes of the generators are connected in parallel; the condenser is a plurality of, and is a plurality of the heat exchange tube of condenser is established ties in proper order.
Further, a first pump is also included, the first pump is arranged between the solution heat exchanger low-temperature side inlet and the generator shell outlet; and/or further comprising a second pump disposed between the evaporator housing inlet and the condenser housing outlet; and/or the evaporator further comprises a third pump, wherein the third pump is arranged between the liquid distribution device and the evaporator shell outlet in the evaporator.
Further, the first pump is a solution pump, the second pump is a refrigerant pump, and the third pump is a refrigerant circulating pump.
Further, still include: a first groove; the first groove is arranged at the lowest end in the absorber; and/or further comprising a second groove; the second groove is arranged at the lowest end in the generator; and/or further comprising a third slot; the third groove is arranged at the lowest end in the condenser; and/or further comprising a fourth slot; the fourth groove is disposed at the lowermost end in the evaporator.
Further, the first tank and the second tank are solution tanks; the third groove and the fourth groove are refrigerant grooves.
(III) advantageous effects
The above technical scheme of the utility model has following profitable technological effect:
the invention provides a multistage series-connected heating type absorption heat exchanger unit, which comprises a structural mode and a system flow, wherein a primary heating medium can transfer heat to hot water on the other side through the flow to heat the hot water to a higher temperature, and the temperature is higher than the highest temperature of the primary heating medium. The invention can realize the conversion of the primary heat medium side small temperature difference to the hot water side large temperature difference by being different from the traditional absorption heat exchange unit. And a multistage series connection mode is adopted, so that the heat exchange efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention.
Reference numerals:
1: an absorption heat pump; 2: a liquid distribution device; 3: an evaporator; 31: an evaporator housing inlet; 32 an evaporator housing outlet; 33: an evaporator heat exchange tube inlet; 34: an evaporator heat exchange tube outlet; 4: an absorber; 41: an absorber housing inlet; 42: an absorber housing outlet; 43: an absorber heat exchange tube inlet; 44: an outlet of the heat exchange tube of the absorber; 5: a generator; 51: a generator housing inlet; 52: a generator housing outlet; 53: an inlet of a heat exchange tube of the generator; 54: an outlet of the heat exchange tube of the generator; 6: a condenser; 61: a condenser shell inlet; 62: a condenser housing outlet; 63: an inlet of a heat exchange tube of the condenser; 64: an outlet of a heat exchange tube of the condenser; 7: a solution heat exchanger; 71: a solution heat exchanger low temperature side inlet; 72: a low-temperature side outlet of the solution heat exchanger; 73: a solution heat exchanger high temperature side inlet; 74: a high temperature side outlet of the solution heat exchanger; 8: a heating medium input port; 9: a heat medium discharge port; 10: a first pump; 11: a second pump; 12: a third pump; 13: a first groove; 14: a second groove; 15: a third groove; 16: a fourth groove; 17: a heat exchanger; 171: a high temperature side inlet of the heat exchanger; 172: a high-temperature side outlet of the heat exchanger; 173: a low temperature side inlet of the heat exchanger; 174: and a low-temperature side outlet of the heat exchanger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
A schematic diagram of a layer structure according to an embodiment of the invention is shown in the drawing. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity. The shapes of various regions, layers, and relative sizes and positional relationships therebetween shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, as actually required.
It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention.
Referring to fig. 1, in a first embodiment of the present invention, a multistage series-connected heat-up absorption heat exchanger unit is provided, including: the system comprises a solution heat exchanger 7, an evaporator 3, an absorber 4, a generator 5, a condenser 6, a liquid distribution device 2 and a heat exchanger 17; the liquid distribution device 2 is provided with a plurality of liquid distribution devices 2, and at least one liquid distribution device 2 is respectively arranged in the absorber 4, the generator 5 and the evaporator 3; the evaporator 3 is communicated with the absorber 4, and the generator 5 is communicated with the condenser 6; the outlet 62 of the condenser shell is connected with the inlet 31 of the evaporator shell, and the outlet 32 of the evaporator shell is connected with the liquid distribution device 2 in the evaporator 3; the heat medium input port 8 is connected with the evaporator heat exchange tube inlet 33, the evaporator heat exchange tube outlet 34 is connected with the generator heat exchange tube inlet 53, and the generator heat exchange tube outlet 54 is connected with the heat medium discharge port 9; the condenser heat exchange tube outlet 64 is connected to the heat exchanger low temperature side inlet 173 and the heat exchanger low temperature side outlet 174 is connected to the absorber heat exchange tube inlet 43. The outlet 42 of the absorber shell is connected with the high-temperature side inlet 73 of the solution heat exchanger, the high-temperature side outlet 74 of the solution heat exchanger is connected with the liquid distribution device 2 in the generator 5, and a plurality of liquid distribution devices 2 in the generator 5 are connected in series; the generator housing outlet 52 is connected to the solution heat exchanger low temperature side inlet 71, and the solution heat exchanger low temperature side outlet 72 is connected to the liquid distributor 2 in the absorber 4. The heat medium inlet port 8 is connected to the heat exchanger high-temperature side inlet 171, and the heat exchanger high-temperature side outlet port 172 is connected to the heat medium outlet port 9. The absorption heat pump is composed of a liquid distribution device 2, an evaporator 3, an absorber 4, a generator 5, a condenser 6, a solution heat exchanger 7 and a pump. The absorption heat pump and the heat exchanger 17 form a multistage parallel heating absorption heat exchanger unit. Each evaporator 3 has an evaporator shell inlet 31, an evaporator shell outlet 32, an evaporator heat exchange tube inlet 33 and an evaporator heat exchange tube outlet 34; each absorber 4 has an absorber shell inlet 41, an absorber shell outlet 42, an absorber heat exchange tube inlet 43 and an absorber heat exchange tube outlet 44; each generator 5 has a generator housing inlet 51, a generator housing outlet 52, a generator heat exchange tube inlet 53 and a generator heat exchange tube outlet 54; each condenser 6 has a condenser shell inlet 61, a condenser shell outlet 62, a condenser heat exchange tube inlet 63 and a condenser heat exchange tube outlet 64; each solution heat exchanger 7 has a solution heat exchanger low temperature side inlet 71, a solution heat exchanger low temperature side outlet 72, a solution heat exchanger high temperature side inlet 73, and a solution heat exchanger high temperature side outlet 74; each heat exchanger 17 has one heat exchanger high temperature side inlet 171, one heat exchanger high temperature side outlet 172, one heat exchanger low temperature side inlet 173, and one heat exchanger low temperature side outlet 174. The structure mode and the system flow are that the primary heating medium can transfer heat to the hot water on the other side through the flow, and the hot water is heated to a higher temperature which is higher than the highest temperature of the primary heating medium. The invention can realize the conversion of the primary heat medium side small temperature difference to the hot water side large temperature difference by being different from the traditional absorption heat exchange unit. And a multistage series connection mode is adopted, so that the heat exchange efficiency is improved.
Optionally, a plurality of evaporators 3 are provided, and the heat exchange tubes of the plurality of evaporators 3 are connected in series; the number of the absorbers 4 is multiple, and the heat exchange tubes of the absorbers 4 are sequentially connected in series; the number of the generators 5 is multiple, and the heat exchange tubes of the generators 5 are connected in parallel; the number of the condensers 6 is multiple, and the heat exchange tubes of the condensers 6 are connected in series in sequence.
Optionally, a first pump 10 is further included, the first pump 10 is arranged between the solution heat exchanger low-temperature side inlet 71 and the generator housing outlet 52; and/or further comprising a second pump 11, the second pump 11 being disposed between the evaporator housing inlet 31 and the condenser housing outlet 62; and/or further comprises a third pump 12 arranged in the evaporator 3 between the liquid distribution device 2 and the evaporator housing outlet 32.
Optionally, the first pump 10 is a solution pump, the second pump 11 is a refrigerant pump, and the third pump 12 is a refrigerant circulating pump. The multi-stage evaporators 3 share one refrigerant circulating pump, and the refrigerants flow in series in the condenser 6 and the evaporators 3 and share one refrigerant pump.
Optionally, the method further includes: a first groove 13; the first tank 13 is disposed at the lowermost end in the absorber 4; and/or further comprises a second slot 14; the second groove 14 is arranged at the lowest end of the generator 5; and/or further comprises a third slot 15; the third tank 15 is arranged at the lowest end in the condenser 6; and/or further comprises a fourth slot 16; the fourth groove 16 is provided at the lowermost end in the evaporator 3.
Optionally, the first tank 13 and the second tank are solution tanks 14; the third tank 15 and the fourth tank 16 are refrigerant tanks.
The heat exchanger 17 may be a plate heat exchanger. The primary heating medium is divided into two paths, one path enters the heat exchanger 17, and the other path successively enters the evaporator 3 and the generator 5 of the absorption heat pump 1. The hot water enters the condensers 6 and the heat exchangers 17 of all stages of the absorption heat pump 1 and the absorbers 4 of all stages of the absorption heat pump 1 in sequence to absorb heat and raise temperature. In the evaporator 3, primary heating media are connected in series from bottom to top, and in the generator 5, the primary heating media are connected in parallel.
The solution circulation side is: the generator housing outlet 52 is connected to the absorber housing inlet 41 by a solution pump and the absorber housing outlet 42 is connected to the generator housing inlet 51. The solution heat exchanger 7 is connected in series intermediate the line between the absorber housing inlet 41 and the generator 5 housing. Therefore, the concentrated solution generated by the generator 5 exchanges heat with the high-temperature dilute solution from the absorber 4 through the solution heat exchanger 7, then is conveyed into the absorber 4 to absorb the refrigerant steam generated by the evaporator 3, becomes dilute solution, then releases heat through the solution heat exchanger 7, and then enters the generator 5 to generate refrigerant steam to become concentrated solution, and solution circulation is completed.
A solution pump 10 and a solution heat exchanger 7 are arranged between the absorber 4 and the generator 5, and the solution is connected in series between the generator 5 and the absorber 4 in each stage for generation and absorption in stages. The bottom layer generator 5 is provided with a concentrated solution tank 14, and the bottom layer absorber 4 is provided with a dilute solution tank 13.
The refrigerant water circulation side is as follows: the condenser housing outlet 62 is connected to the evaporator housing inlet 31 by the refrigerant pump 11. The refrigerant water is evaporated into refrigerant vapor in the evaporator 3, absorbed by the absorber 4, and enters the solution circulation side, and then enters the generator 5 to be generated into refrigerant vapor, and is condensed into refrigerant water in the condenser 6, thereby completing the refrigerant circulation process. The refrigerant flows in series in the condenser 6 and the evaporator 3, and shares the single refrigerant pump 11. The condenser 6 is provided with a refrigerant tank 15 at the bottom. The refrigerant water of each stage of condenser 6 flows to the bottom refrigerant groove 15 uniformly, enters the liquid distribution device 2 in the top evaporator 3 after passing through a refrigerant pump 11, and the refrigerant sides of each stage of evaporator 3 are connected in series and are evaporated into refrigerant steam in stages.
Hot water side: the hot water enters the condenser 6 of the absorption heat pump 1, the heat exchanger 17 and the absorber 4 of the absorption heat pump 1 in sequence to absorb heat and raise temperature.
The utility model aims at protecting a multistage series connection's type of rising temperature absorption heat exchanger unit, include: the system comprises a solution heat exchanger 7, an evaporator 3, an absorber 4, a generator 5, a condenser 6, a liquid distribution device 2 and a heat exchanger 17; the liquid distribution device 2 is provided with a plurality of liquid distribution devices 2, and at least one liquid distribution device 2 is respectively arranged in the absorber 4, the generator 5 and the evaporator 3; the evaporator 3 is communicated with the absorber 4, and the generator 5 is communicated with the condenser 6; the outlet 62 of the condenser shell is connected with the inlet 31 of the evaporator shell, and the outlet 32 of the evaporator shell is connected with the liquid distribution device 2 in the evaporator 3; the heat medium input port 8 is connected with the evaporator heat exchange tube inlet 33, the evaporator heat exchange tube outlet 34 is connected with the generator heat exchange tube inlet 53, and the generator heat exchange tube outlet 54 is connected with the heat medium discharge port 9; the condenser heat exchange tube outlet 64 is connected to the heat exchanger low temperature side inlet 173 and the heat exchanger low temperature side outlet 174 is connected to the absorber heat exchange tube inlet 43. The outlet 42 of the absorber shell is connected with the high-temperature side inlet 73 of the solution heat exchanger, the high-temperature side outlet 74 of the solution heat exchanger is connected with the liquid distribution device 2 in the generator 5, and a plurality of liquid distribution devices 2 in the generator 5 are connected in series; the generator housing outlet 52 is connected to the solution heat exchanger low temperature side inlet 71, and the solution heat exchanger low temperature side outlet 72 is connected to the liquid distributor 2 in the absorber 4. The heat medium inlet port 8 is connected to the heat exchanger high-temperature side inlet 171, and the heat exchanger high-temperature side outlet port 172 is connected to the heat medium outlet port 9. The structure mode and the system flow are that the primary medium can transfer heat to hot water on the other side through the flow, and the hot water is heated to a higher temperature which is higher than the highest temperature of the primary medium. The invention can realize the conversion of the primary heat medium side small temperature difference to the hot water side large temperature difference by being different from the traditional absorption heat exchange unit. And a multistage series connection mode is adopted, so that the heat exchange efficiency is improved.
The above description refers to the embodiments of the present invention. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the invention, and these alternatives and modifications are intended to be within the scope of the invention.
Claims (6)
1. A multistage series connection temperature rise type absorption heat exchanger unit is characterized by comprising: the device comprises a solution heat exchanger (7), an evaporator (3), an absorber (4), a generator (5), a condenser (6), a liquid distribution device (2) and a heat exchanger (17);
the liquid distribution devices (2) are multiple, and at least one liquid distribution device (2) is arranged in the absorber (4), the generator (5) and the evaporator (3) respectively;
the evaporator (3) is communicated with the absorber (4), and the generator (5) is communicated with the condenser (6);
an outlet (62) of the condenser shell is connected with an inlet (31) of the evaporator shell, and an outlet (32) of the evaporator shell is connected with the liquid distribution device (2) in the evaporator (3);
the heat medium input port (8) is connected with the evaporator heat exchange tube inlet (33), the evaporator heat exchange tube outlet (34) is connected with the generator heat exchange tube inlet (53), and the generator heat exchange tube outlet (54) is connected with the heat medium discharge port (9);
an outlet (64) of a heat exchange tube of the condenser is connected with a low-temperature side inlet (173) of the heat exchanger, and an outlet (174) of the low-temperature side of the heat exchanger is connected with an inlet (43) of a heat exchange tube of the absorber;
an outlet (42) of the absorber shell is connected with an inlet (73) at the high-temperature side of the solution heat exchanger, an outlet (74) at the high-temperature side of the solution heat exchanger is connected with the liquid distribution device (2) in the generator (5), and a plurality of liquid distribution devices (2) in the generator (5) are connected in series;
an outlet (52) of the generator shell is connected with a low-temperature side inlet (71) of the solution heat exchanger, and a low-temperature side outlet (72) of the solution heat exchanger is connected with the liquid distribution device (2) in the absorber (4);
the heat medium input port (8) is connected with the heat exchanger high-temperature side inlet (171), and the heat exchanger high-temperature side outlet (172) is connected with the heat medium outlet (9).
2. A multistage series connection heating absorption heat exchanger unit as claimed in claim 1, wherein the evaporator (3) is plural, and the heat exchange tubes of the plural evaporators (3) are connected in series; the number of the absorbers (4) is multiple, and the heat exchange tubes of the absorbers (4) are sequentially connected in series; the number of the generators (5) is multiple, and the heat exchange tubes of the generators (5) are connected in parallel; the condenser (6) is a plurality of, and a plurality of the heat exchange tubes of the condenser (6) are connected in series in sequence.
3. The multi-stage series connection block of absorption heat exchangers of the rising temperature type according to claim 2, further comprising a first pump (10), the first pump (10) being arranged between the solution heat exchanger low temperature side inlet (71) and the generator housing outlet (52); and/or
Further comprising a second pump (11), said second pump (11) being disposed between said evaporator housing inlet (31) and said condenser housing outlet (62); and/or
The liquid distribution device further comprises a third pump (12) which is arranged in the evaporator (3) between the liquid distribution device (2) and the evaporator shell outlet (32).
4. A multi-stage series-connected absorption heat exchanger unit according to claim 3, wherein the first pump (10) is a solution pump, the second pump (11) is a refrigerant pump, and the third pump (12) is a refrigerant circulating pump.
5. The multi-stage series connection elevated temperature absorption heat exchanger unit according to any one of claims 1 to 4, further comprising: a first groove (13); the first tank (13) is arranged at the lowest end in the absorber (4); and/or
Further comprising a second groove (14); the second groove (14) is arranged at the lowest end in the generator (5); and/or
Further comprising a third groove (15); the third groove (15) is arranged at the lowest end in the condenser (6); and/or
Further comprising a fourth groove (16); the fourth groove (16) is arranged at the lowermost end in the evaporator (3).
6. The multistage series connection of absorption heat exchanger blocks according to claim 5, wherein the first tank (13) and the second tank (14) are solution tanks; the third groove (15) and the fourth groove (16) are refrigerant grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920132244.3U CN210035660U (en) | 2019-01-25 | 2019-01-25 | Multistage-series-connection heating absorption type heat exchanger unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920132244.3U CN210035660U (en) | 2019-01-25 | 2019-01-25 | Multistage-series-connection heating absorption type heat exchanger unit |
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| CN210035660U true CN210035660U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964148A (en) * | 2020-08-17 | 2020-11-20 | 清华大学 | Absorption heat exchanger capable of realizing multi-zone independent heat supply and debugging method |
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2019
- 2019-01-25 CN CN201920132244.3U patent/CN210035660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964148A (en) * | 2020-08-17 | 2020-11-20 | 清华大学 | Absorption heat exchanger capable of realizing multi-zone independent heat supply and debugging method |
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